I have a 1-1/2 year old mint condition Collins I3 Gen 3 Image Intensifier for sale. While I held out as long as I could, I'm trying to raise cash for a Daystar University grade HA filter ($$$), and already sold my LX200, Gemini mount & HA filter, so it's time to break into my best stuff. I paid over $2700 for this setup which includes: I3 Intensifying EP; 15 and 25mm lens' by TeleVue; 1-1/4 and 2" adapters; and it all performs perfectly. Will sell for $1600 OBO. That's a savings of 45% off price of new unit and you will not be able to tell the difference between the two! I will e-mail photos upon request. Many thanks for looking.